Computer generated image for a display screen



The single FIGURE is a front view of a computer generated image for a display screen embodying our new design.

The broken line drawing of the display screen, including the two outermost rectangles outlines, are for illustrative purposes only and form no part of the claimed design. The broken line drawings of interior elements—the two rectangles, and the rectangular outline surrounding the center lower element—are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a computer generated image for a display screen, as shown and described. 